Answer:
Natalie’s estimate is NOT reasonable. She makes about 100 more cookies and sells about 100 cookies so she should have about 300 left.
Explanation:
It says that she makes 8 more batches with 12 cookies in each batch, which should equal 96 cookies.
Since she had 300 cookies to start with and we are adding 96 cookies, Natalie now has 396 cookies.
Then, it says that Natalie sells 6 bags of cookies with 21 cookies in each bag, which would equal 126 cookies SOLD.
396-126=270. Since 270 can be estimated to be 300, the answer is C.
Hope this helps:)